JP2014102586A - Communication device, communication system and radio apparatus detection program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a radio communication device having a function for determining whether another radio apparatus exists.SOLUTION: A communication device 1 is carried by a security guard and is used in his/her work. The communication device 1 comprises a radio communication unit 10, and an electric wave detection unit 20 for detecting the existence of another radio apparatus. The radio communication unit comprises an operation unit 122 for inputting duty state information on a user, and an operation mode setting unit 143 for causing the electric wave detection unit to be in an activation state. When the duty state information is specific, the electric wave detection unit is activated. The electric wave detection unit comprises: an operation control unit 28 for, when receiving an activation signal, performing electric wave detection operation for another radio apparatus; and a determination unit 30 for, when an electric wave having a predetermined or higher intensity is detected, determining that another radio apparatus exists.

Description

  The present invention relates to a communication device, a communication system, and a wireless device detection program, and more particularly, to a communication device, a communication system, and a wireless device detection program for detecting another communication device that performs communication with a base station.

  Offices, research facilities, factories, and the like are often equipped with a device for notifying a security company that there has been an abnormality such as an outsider's intrusion or facility destruction. Upon receiving the notification, the security guard of the security company goes to the site where the notification is issued and deals with the abnormal situation. In addition to dealing with abnormal situations, security guards perform duties such as patrol and monitoring at multiple locations and standing up at specific locations in specific buildings such as entrances and exits. doing.

  In general, guards who are performing their duties are prohibited from private use of mobile phones. This is because private use of mobile phones impairs the concentration of security guards and prevents the performance of duties. Security guards often encounter the client's confidential information. For example, in a building where a notice of abnormality is issued, a document on which the trade secret is written is placed on a desk, or a paper on which the trade secret is written is posted. Due to these job characteristics, private use of mobile phones by security guards is severely restricted.

  In the following Patent Documents 1 and 2, mobile phones possessed by security guards are described. Patent Document 3 describes a device that detects a radio device that generates electromagnetic wave noise that gives a malfunction to precision electronic devices such as medical care and robots, and issues an alarm. Patent Document 4 describes an apparatus that monitors a wireless device so that the wireless device is not brought into a place / facility where the introduction of the wireless device is restricted.

Japanese Patent Laid-Open No. 06-268744 JP 2002-230653 A Japanese Patent Laid-Open No. 10-232987 Japanese Patent Laid-Open No. 11-7564

  In general, a security mobile phone is loaned to a security guard from a management organization such as a security company or a security department in a company. Therefore, it is possible to monitor the private use of the mobile phone by checking the use history of the mobile phone lent to the security guard by the management organization. However, it is difficult to monitor the use of mobile phones privately held by security guards from the viewpoint of privacy infringement and the like, and the operation of prohibiting bringing in personal mobile phones has been adopted.

  The present invention has been made for such a problem. That is, an object of the present invention is to realize a wireless communication apparatus having a function of determining whether or not another wireless device such as a mobile phone privately held by a security guard exists.

  The present invention is a communication device having a wireless communication unit that is connected to a communication line and communicates with another communication device, and a radio wave detection unit that detects the presence of another wireless device, the wireless communication unit, An operation unit for inputting work status information of a user, and an operation mode setting unit that activates the radio wave detection unit when the work status information is specified. The radio wave detection unit includes the operation mode setting unit. And an operation control unit that performs a radio wave detection operation when receiving an activation signal from the mobile station, and a determination unit that determines that another radio is present when a radio wave having a predetermined intensity or higher is detected.

  Moreover, the communication device according to the present invention is characterized in that the operation mode setting unit activates the radio wave detection unit when the work status information of the user is a coping task.

Furthermore, in the communication device according to the present invention, the radio wave detection unit includes a transmission stop unit that sets the radio communication unit to a state where radio transmission is not performed, and transmits other radio waves when the radio transmission is not performed. It is characterized by detecting.

  The present invention also provides a method for detecting another communication device in a communication device having a wireless communication unit that communicates with another communication device via a communication line and a radio wave detection unit that detects the presence of another wireless device. A step of inputting work status information of the user at the operation unit, a step of setting the radio wave detection unit to an activated state in the operation mode setting unit when the work status information is specific, and a radio wave detection unit And a step of determining that another radio is present when a radio wave having a predetermined intensity or more is detected.

Furthermore, the present invention provides a radio detection program stored in a radio communication device that is connected to a communication line and communicates with another communication device, the process for inputting work status information of a user, A process in which the radio communication device includes a process for setting the radio wave detection unit to an activated state in a state and a process for determining that another radio is present when a radio wave of a predetermined intensity is detected. It is characterized by making it.

  The present invention also provides a communication device having a wireless communication unit that is connected to a communication line and communicates with another communication device, a radio wave detection unit that detects the presence of another wireless device, and a sensor that detects an abnormality. A communication system including a center device that receives a signal from an installed property, wherein the communication device is configured to activate an operation control unit that activates the radio wave detection unit, and to detect a radio wave having a predetermined intensity or more. A determination unit that determines that there is another wireless device, and the center device receives an operation unit that inputs work status information of a user of the communication device and a user's response by receiving the property signal The communication device of the user, and a signal that activates the radio wave detection unit when the security determination unit determines that a countermeasure is required. It is characterized by transmitting to.

  ADVANTAGE OF THE INVENTION According to this invention, when a user is a specific work state, the radio | wireless communication apparatus provided with the function to determine whether another radio | wireless machine exists can be implement | achieved.

It is a figure which shows the structure of the communication system containing the communication apparatus which concerns on 1st Embodiment. It is a figure which shows the structure of the communication apparatus which concerns on 1st Embodiment. It is a figure which shows the flow for operation | movement description of the communication apparatus which concerns on 1st Embodiment. It is a figure which shows the flow for operation | movement description of the electromagnetic wave detection / determination of the communication apparatus which concerns on 1st Embodiment. It is a figure which shows the structure of the communication apparatus which concerns on 2nd Embodiment. It is a figure which shows the structure of the center apparatus which concerns on 2nd Embodiment. It is a figure which shows the sequence for operation | movement description of the radio | wireless communications system which concerns on 2nd Embodiment.

A first embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a schematic diagram showing a schematic configuration of a communication system in which a communication apparatus according to the present invention is applied to a security system. The system includes a monitoring center having a communication device 1, a security target property 2, a center device 3, a communication network 4, a mobile communication base station 5, a security device 6 installed in the security target property 2, and the center device 3. Composed. In this embodiment, a security guard of the security company owns the communication device 1.

  The communication device 1 includes a wireless communication unit 10 and a wireless device detection unit 20. The wireless communication unit 10 has a mobile communication function, and is, for example, a smartphone, a tablet computer, or a mobile phone. The communication device 1 is wirelessly connected to the mobile communication base station 5 in the vicinity thereof, and can communicate with the center device 3 and other communication devices via the mobile communication base station 5 and the communication network 4.

  In the building 2 that is a security target property, the security device 6 is connected to an intrusion detection sensor (not shown), a fire detection sensor (not shown), an electric lock (not shown) of a door, or the like by wire or wireless, and a communication network. 4 is connected to a remote center device 3. The security device 6 can set a security set mode, a security release mode, and a countermeasure mode. In the security set mode, the center device 3 is based on abnormality detection signals from various sensors when a predetermined emergency event occurs. An alarm signal is transmitted to the center device 3 or an image taken by a monitoring camera (not shown) or an image sensor (not shown) is transmitted to the center device 3.

The security device 6 does not transmit an alarm signal to the center device 3 even if it receives an abnormality detection signal from the intrusion detection sensor in the security release mode, but the abnormality detection signal such as a fire detection sensor or an emergency signal is not transmitted to the center device. An alarm signal is transmitted to 3. The customer of the security device 6 can switch between the security set mode and the security release mode. The coping mode is a security mode for security guards used when security guards deal with the building 2, and is a mode that can be set when the security guards check the inside of the building 2 upon receiving an abnormality report. is there. The security set mode, the security release mode, and the countermeasure mode are collectively referred to as a security mode. When the security mode is set, the security device 6 transmits a security mode signal indicating the security mode set in the monitoring center 7.

  When the intrusion detection sensor or the monitoring camera installed in the building 2 notifies the center device 3 of the occurrence of an abnormality, the monitoring center 7 sends an instruction for “handling” to the communication device 1 possessed by the security guard. It is done. The guards deal with abnormalities (such as intrusion of suspicious persons, fires, etc.) occurring in the building 2 while using the communication device 1 to contact and cooperate with the monitoring center 7.

  Here, the duty state of the guard who possesses the communication device 1 will be described. The work status of the guard is determined from the work information (status from the start of work to the end of work) of the guard and the work status. The business status can be broadly classified into the status of “handling” and the state of not taking “handling”. The state being dealt with includes not only the state of “handling” the abnormality in the building 2 which is the site where the abnormality has occurred, but also the state of “moving” to the site. It should be noted that even when the “handling” is being performed, the “handling” due to an intrusion abnormality when the building 2 is unattended, the “handling” due to a fire abnormality that may be present in the building 2 and the security guard The state of the “tour” operation for inspecting a predetermined portion of the site is also included.

Moreover, the state which is not dealt with includes the state of “standby” at the office and the state of “rest”.

  The state of the communication device 1 will also be described. When the security guard starts working, the security guard inputs his / her own ID (security guard ID) and the start of work. Is associated (correspondence between the security guard and the communication device 1), and the communication device 1 is in the “available” state. Then, when the security guard finishes work, the security guard inputs his / her own ID (security guard ID) and the work termination to the communication device 1 so that the association with the security guard is cut off, and the communication device 1 It becomes “unusable” and can be linked with other guards. When the communication device 1 becomes usable / unusable, the security guard ID and the communication device ID are sent to the monitoring center 7 to manage which security device is using which communication device 1.

  The center device 3 is installed in a monitoring center 7 operated by a security company or the like to monitor a monitoring area, and communicates with the communication device 1 and the security device 6 via the communication network 4 to work for the security of the building 2 and the security personnel. Stores status (working information and business status). In addition to this, the center apparatus 3 is a facility that manages guards, such as a security headquarters that dispatches security guards, a command headquarters for issuing instructions to the security guards remotely, and a disaster prevention headquarters installed in a disaster prevention center in a large building. It may be installed.

  FIG. 2 shows the configuration of the communication apparatus 1 according to the first embodiment of the present invention. The communication device 1 is carried by a security guard and used for performing duties. The communication device 1 includes a wireless communication unit 10 and a wireless device detection unit 20 accommodated in the same case. The wireless communication unit 10 has a function as a mobile phone, and performs wireless communication with the base station 5 of the mobile phone system. The wireless device detection unit 20 detects a wireless device other than the communication device 1.

  The wireless communication unit 10 includes a user interface unit 12, a control unit 14, a wireless unit 16, a transmission / reception antenna 17, and a storage unit 18. The user interface unit 12 includes a notification unit 121, an operation unit 122, and the like. The notification unit 121 includes a display, an LED display, a vibrator, and the like, and has a function of displaying various information (for example, instruction information transmitted from the monitoring center 7). The operation unit 122 includes a touch panel, buttons, a keypad, and the like, and has a function for a security guard to input the communication device 1. The operation unit 122 is used by the security guard to input his / her work status (for example, work information or work status such as “handling”). When the work status is input, the work status of the guard is transmitted to the monitoring center 7 via the base station 5 and the communication network 4.

The user interface unit 12 includes a receiver, a microphone, a speaker, an earphone jack, a communication connector, and the like. The security guard performs an operation input for operating the communication device 1 through the user interface unit 12. The user interface unit 12 outputs operation information corresponding to the operation of the guard to the control unit 14.

  The control unit 14 includes a work status acquisition unit 141, a determination unit 142, an operation mode setting unit 143, and the like, and controls the user interface unit 12 and the radio unit 16 based on operation information of the operation unit 122. This control includes control of outgoing calls, incoming calls, telephone calls, transmission / reception of e-mails, browsing of websites on the Internet, and the like.

  In this control, the control unit 14 communicates with the base station 5 via the radio unit 16 and the transmission / reception antenna 17 to access the line of the mobile phone system. That is, the control unit 14 outputs a baseband signal including information to be transmitted to the base station 5 to the radio unit 16. The radio unit 16 converts the signal output from the control unit 14 into a radio signal and transmits the radio signal to the base station 5 from the transmission / reception antenna 17. The radio unit 16 converts a radio signal transmitted from the base station and received by the transmission / reception antenna 17 into a baseband signal and outputs the signal to the control unit 14.

  The work status acquisition unit 141 has a function of acquiring work status information (including work information and work status information) input from the operation unit 122. When the work status acquisition unit 141 acquires work information (work start or work end), the determination unit 142 sets the communication device 1 to “usable” or “unusable”. The determination unit 142 stores the availability information of the communication device 1 in the storage unit 18.

In addition, the determination unit 142 reads the correspondence table stored in the storage unit 18 based on the work status information acquired from the work status acquisition unit 141, and the operation mode of the wireless device detection unit 20, that is, “detection mode” or “stop” "Mode" is determined. The operation mode setting unit 143 sets the operation mode of the wireless device detection unit 20 according to the determination result of the determination unit 142. For example, the operation mode setting unit 143 transmits a detection instruction signal to the wireless device detection unit 20 when setting the wireless device detection unit 20 to the “detection mode”.

  In addition, when performing wireless communication with the base station 5, the control unit 14 depends on the communication method of the mobile phone system to which the base station belongs, such as a frequency multiple access method, a time division multiple access method, and a code multiple access method. The radio unit 16 is controlled to set the frequency of the radio signal, the time slot in which the radio signal is transmitted and received, and the like.

  The storage unit 18 includes a correspondence table between the business status and the operation mode of the wireless device detection unit, work status information input from the operation unit 122 of the user interface unit 12, and the “operation mode” of the wireless device detection unit 20. It is remembered. For example, in the correspondence table, the work status “handling” and the operation mode “detection mode” are associated with each other, and “not handled”, that is, the work status “standby” or “rest” is the operation mode “stop mode”. Is associated.

  Since the communication device 1 is used by security guards in their duties, the control unit 14 prohibits browsing of websites on the Internet, transmission of e-mails to specific addresses, calls to specific telephone numbers, and the like. It may be set as follows.

  The wireless device detection unit 20 includes a radio wave detection unit 22, a reception antenna 24, and a reception unit 26. The radio wave detection unit 22 controls the radio communication unit 10 when receiving an “operation mode” signal from the control unit 14. In the present embodiment, the state suitable for detecting radio waves transmitted from other wireless devices refers to a state in which wireless signals are not transmitted by the wireless unit 16.

  The radio wave detection unit 22 includes an operation control unit 28, a transmission stop unit 29, a radio wave detection / determination unit 30, and a warning command unit 32. The radio wave detection unit 22 operates when the operation control unit 28 receives a detection instruction signal instructing setting of the “detection mode” as the “operation mode” signal from the control unit 14. The radio wave detection unit 22 may be configured by a processor that operates according to a program read by itself. In this case, the functions of the transmission stop unit 29, the radio wave detection / determination unit 30, and the warning command unit 32 in the radio wave detection unit 22 are realized by executing the program. The radio wave detection unit 22 may be integrated with the control unit 14 in the wireless communication unit 10.

  When the operation control unit 28 receives the detection instruction signal from the operation mode setting unit 143, the operation control unit 28 controls the transmission stop unit 29 and the radio wave detection / determination unit 30 so as to detect whether or not another wireless device exists in the vicinity. To do.

  When receiving the activation signal from the operation control unit 28, the transmission stop unit 29 controls the control unit 14 for a predetermined stop time to set the wireless unit 16 to a drive state or a stop state at every predetermined interval time.

The radio wave detection / determination unit 30 detects surrounding radio waves using the reception unit 26 and the reception antenna 24 while the wireless unit 16 is in the stop time. Based on whether or not the intensity of the detected radio wave is equal to or higher than a threshold value, it is determined whether or not there is another wireless device.
In addition, regarding the determination that another wireless device is present, the time when the strength of the detection signal received and detected by the reception unit 26 via the reception antenna 24 has exceeded a determination threshold has exceeded a predetermined determination time, or A condition that the predetermined determination time is exceeded may be added. As a result, misjudgment due to instantaneous noise emitted from an electrical device that is not a wireless device is avoided.

  Also, depending on the communication method employed by the wireless device, the intensity of radio waves emitted from the wireless device varies. For example, in the case of a wireless device employing a time division multiple access method, radio waves are emitted only in a prescribed time slot, and transmission and transmission stop are repeated within a short time. Therefore, the determination of the intensity of the detection signal is performed by determining the time average value of the detection signal (average value within a certain time period in the past), a signal obtained by subjecting the detection signal to a low-pass filter process having an integration effect, etc. You may go by.

  The radio wave detection / determination unit 30 repeatedly changes the reception frequency set for the reception unit 26 within a predetermined frequency range, and determines whether there is another wireless device for each reception frequency. This frequency range is, for example, a frequency range used in any mobile phone system.

  When the radio wave detection / determination unit 30 determines that another wireless device is present, that is, when another wireless device is detected, the warning command unit 32 controls the control unit 14 to the wireless communication unit 10. Perform warning processing. This warning process is a process for responding to a case where another wireless device is detected, and includes a warning operation for alerting a security guard possessing the communication device 1 and a communication to the monitoring center 7. The places where the security officers perform their duties are in the building 2 at night and in the automobiles of mobile vehicles, and there are many people who use wireless devices such as mobile phones other than the security officers. That is, when another wireless device is detected, it is suspected that a security guard has brought a private mobile phone, or that a third party (for example, an intruder) exists in the vicinity.

  Examples of the warning operation for alerting the guard who possesses the communication device 1 include a process of operating the vibrator of the notification unit 121 of the user interface unit 12 and a process of displaying a warning message on the display. Further, the contact of the guard to the monitoring center 7 includes, for example, a process of sending an e-mail to the monitoring center 7 or making a telephone contact to the monitoring center 7.

  According to such configuration and processing, when there is another wireless device such as a mobile phone in the vicinity of the communication device 1, the wireless communication unit 10 performs warning processing under the control of the warning command unit 32 of the radio wave detection unit 22. Execute. As a result, if there is a third party who owns a mobile phone that is turned on or in the vicinity, the mobile phone privately owned by the security guard Warning, notification to the monitoring center 7, etc. are performed. Therefore, it becomes easy to control the use of the mobile phone when the guard is privately owned.

In addition, if the security guard does not have a mobile phone privately, the security guard can take a more cautious response because there is a third party (for example, an intruder) nearby.
Note that the determination threshold for the intensity of the detection signal is determined in consideration of the distance to other wireless devices. Therefore, it is difficult to detect radio waves from wireless devices such as mobile phones possessed by persons other than security guards.

  The operation of the communication apparatus according to the first embodiment configured as described above will be described with reference to the flowchart of FIG.

  As shown in FIG. 3, the communication device 1 of the present embodiment is set to be unusable as an initial setting (default setting) (S1). When the security guard starts work, the company-owned communication device 1 is lent by the administrator, and an identification code (for example, employee code) and work information indicating the self are input from the operation unit 122 (S2). Thereby, the determination part 142 acquires work information by the work state acquisition part 141, and sets the communication apparatus 1 in a usable state (S3). When the communication device 1 is set to be usable, the operation of the wireless device detection unit 20 is set to the stop mode (S4). As an initial setting, the operation of the radio detection unit 20 may be set to the stop mode. In this case, step 4 is omitted.

Here, when the sensor detects an abnormality in the building 2, that is, when an emergency event occurs in the building 2, an alarm signal is transmitted to the center device 3 via the communication network 4. In the monitoring center 7, if it is determined that the guard 2 needs to deal with the building 2, a “handling instruction” signal is transmitted from the center device 3 to the communication device 1 carried by the guard.

When the determination unit 142 receives the “handling instruction” signal from the center device 3 via the wireless unit 16 (S5), the determination unit 142 sets the work status to “handling” and stores it as work status information in the storage unit (S6). . The setting of the business situation may be performed from the operation unit 122 by a guard. The determination unit 142 reads the “detection mode” associated with “handling” in the correspondence table stored in the storage unit 18 and causes the operation mode setting unit 143 to set the “detection mode” (S7).

When the business status is set to “not dealt with”, that is, “standby” or “rest”, the determination unit 142 causes the operation mode setting unit 143 to set “stop mode” based on the correspondence table. . Here, it has been described that the countermeasure instruction signal is received from the center apparatus 3 and “determination” is set by the determination unit 142 and the operation mode setting section 143 is set to “detection mode”. May be notified to the guard by the notifying unit 121 and the operation mode setting unit 143 may set the “detection mode” when the guard performs “handling” input as the work status by the operation unit 122.

The operation mode setting unit 143 transmits a detection instruction signal to the operation control unit 28 and activates the radio wave detection unit 22 (S8).
When the operation control unit 28 receives the activation signal from the operation mode setting unit 143, the operation control unit 28 detects other communication devices that emit radio waves (S9). Another radio wave detection method will be described with reference to FIG.

  When the radio wave detection / determination unit 30 detects a communication device that emits another radio wave (S10), the control unit 14 notifies the notification unit 121 of the user interface unit 12 that another communication device has been detected. A warning is displayed (S11). Then, another communication device discovery signal is transmitted to the center device 3 via the wireless unit 16 (S12).

When the handling of the abnormality of the building 2 is finished, the security guard inputs “standby” or “rest” meaning “end of handling” on the operation unit 122 (S13). When “standby” or “rest” is input on the operation unit 122, the work status acquisition unit 141 acquires that the handling is completed, and transmits the fact to the determination unit 14. The determination unit 142 reads the operation mode corresponding to the end of the countermeasure, that is, the “stop mode” from the correspondence table stored in the storage unit 18, causes the operation mode setting unit 143 to set the “stop mode”, and the operation mode setting unit The operation of the radio wave detection unit 22 is stopped via 143 (S14). The control unit 14 transmits to the center device 3 that the handling of the building 2 has been completed via the wireless unit 16 and the communication network 4 (S15).

When the work is finished, the security guard inputs an identification code (e.g., employee code) indicating self and work information (work end) from the operation unit 122, and returns the lent communication device 1 to the administrator (S16). . The determination unit 142 acquires work information by the work state acquisition unit 141, and sets the communication device 1 to an unusable state (S17). In addition, although work end information was demonstrated here by the input operation of the security guard here, for example, the determination part 142 determines that the working time has ended from the security staff work information stored in the storage part 18, and the communication device concerned The notification unit 121 may be notified of this, and the power supply unit (not shown) may be turned off, and the setting may be set to a default value to disable the communication device 4. In this way, it is possible to lend the communication device 1 to other security guards by cutting the association between the security guard and the communication device 1.

Further, the unusable state of the communication device 1 may be transmitted to the center device 3 through the wireless unit 16, the communication network 4, and the like.

With reference to the flowchart of FIG. 4, the operation of detecting another communication device emitting radio waves will be described.
The radio wave detection / determination process shown in FIG. 4 is executed in step S9 of FIG.
The operation control unit 28 activates the transmission stop unit 29 in order to detect whether another wireless device is present in the vicinity (S21).

  When the transmission stop unit 29 receives the activation signal from the operation control unit 28, the transmission stop unit 29 controls the control unit 14 for a predetermined stop time every predetermined interval time to set the wireless unit 16 to the drive state or to the stop state ( S22). Here, the process of setting the wireless unit 16 in a stopped state is an operation of communicating with a base station as a mobile phone in addition to a process of stopping transmission of a wireless signal when the wireless unit 16 is transmitting a wireless signal. Even when the wireless unit 16 needs to transmit a wireless signal, the wireless unit 16 includes a process of not transmitting the wireless signal. The interval time and the stop time are determined as a time that does not hinder the function of the wireless communication unit 10 as a mobile phone. Further, in addition to setting the radio unit 16 in a stopped state at every predetermined interval time, control for setting the radio unit 16 in a stopped state may be executed based on a predetermined schedule without being limited to every equal interval time.

  The radio wave detection / determination unit 30 detects a radio wave via the reception antenna 24 and the reception unit 26 during the above stop time (S23), and based on the detected radio wave, whether or not there is another wireless device. Determine whether. More specifically, the following processing is executed.

The radio wave detection / determination unit 30 sets the reception frequency of the reception unit 26 (S24). As this reception frequency, frequencies included in frequency bands used in all mobile phone systems are sequentially set. As a result, the reception unit 26 receives and detects the radio wave at the set reception frequency via the reception antenna 24. Then, a detection signal for the received radio wave is output to the radio wave detection / determination unit 30 (S25).

  The radio wave detection / determination unit 30 determines whether or not the intensity of the detection signal is greater than or equal to a determination threshold (S26). When the intensity of the detection signal is equal to or greater than the determination threshold, it is determined that another radio is present (S27). Here, the determination threshold is determined based on a value that the intensity of the detection signal can take when another wireless device is within a predetermined distance range from the communication device 1. This distance range is, for example, a radius of 3 m or less, more preferably a radius of 1 m or less. That is, the determination threshold is set so that it is difficult to detect radio waves from a wireless device held by another person outside the predetermined distance range from the guard.

  According to the communication device 1 of the first embodiment as described above, when the security guard does not bring a private mobile phone when dealing with the security guard, there is a third party in the vicinity of the security guard. Can be grasped. That is, the existence of a bandit can be detected. This allows guards to be cautious and reduce the risk of being attacked by bandits. In addition, if a security guard brings a private mobile phone at the time of handling, unauthorized use at the time of dealing with the private mobile phone can be prohibited, so information leakage from the communication device 1 or the private mobile phone 1 can be prevented. Can be prevented.

  Moreover, in 1st Embodiment, while the monitoring center 7 can grasp | ascertain the work condition of the guard of the communication apparatus 1 appropriately based on the input by the operation part 122 of a guard, operation | movement of the communication apparatus 1 is demonstrated. The mode can be set appropriately according to the working conditions.

  The present invention is not limited to the above-described embodiment, and many changes and modifications can be made. For example, in the first embodiment of the present invention, a description has been given of a configuration in which acquisition of the work status (start and end of work) of the security guard is input by the operation unit 122. However, the work status of each security guard is monitored by the monitoring center 7. Collectively input and memorize, judge the work status of each guard at the monitoring center 7, and set the operation mode of the radio detection unit 20 by transmitting the information of the work status to the corresponding communication device 1 You may make it do.

Next, a second embodiment of the present invention will be described with reference to the drawings.
The present embodiment includes a communication device 40, a communication network 4, a mobile base station 5, and a center device 70.

FIG. 5 is a block diagram of the communication device 40 according to the second embodiment, which includes a wireless communication unit 50, a wireless detection unit 60, and the like. The difference from the communication apparatus 1 of the first embodiment is that the user interface unit 52 does not include an operation unit (not an essential configuration). In addition, the same number is attached | subjected to the same thing as 1st Embodiment.

The wireless communication unit 50 includes a user interface unit 52, a control unit 54, a storage unit 18, a wireless unit 16, and an antenna 18.
Here, the user interface unit 52 includes a notification unit 121 that notifies a warning command. The control unit 54 includes a work status acquisition unit 141, a determination unit 142, and an operation mode setting unit 143.
The work status acquisition unit 141 receives a signal for setting the operation mode of the wireless device detection unit 60 from the monitoring center 7 via the antenna 17 and the wireless unit 16. The signal for setting the operation mode is, for example, a “handling instruction signal” or a “handling end signal”, that is, a signal indicating work information of a guard who possesses the communication device 40. When receiving the signal from the monitoring center 7, the work status acquisition unit 141 causes the storage unit 18 to store work information indicated by the signal.

When receiving the countermeasure instruction signal transmitted from the center device 70, the determination unit 142 controls the operation mode setting unit 143 to operate the wireless device detection unit 60. Further, when the determination unit 142 receives a countermeasure end signal, the determination unit 142 controls the operation mode setting unit 143 to stop the operation of the wireless device detection unit 60.
The radio detection unit 60 includes a radio wave detection unit 22, a reception unit 26, and an antenna 24. As in the first embodiment, the radio wave detection unit 22 includes an operation control unit 28, a transmission stop unit 29, a radio wave detection / determination unit 30, and a warning command unit 32.

The monitoring center 7 will be described with reference to FIG.
The monitoring center 7 has an input unit 72 for inputting a security worker's work system, that is, work information (information indicating who works from which time to what time) and a communication device 40 given to the security guard. , Receiving security information (including a security mode signal and warning signal of the building 2) transmitted from the security device 6 installed in the security target property 2 via the communication network 4, and from the communication device 40 to the base station 5 and A communication unit 74 for receiving instructions from the guards or reports from the guards via the communication network 4, a correspondence table between the work information of the guards and the communication device 40 linked to the guards, and the building 2 It has a storage unit 76 and a control unit 78 for storing security information and the like.

The control unit 78 includes a security mode setting unit 80, a security determination unit 82, and a stop instruction unit 84. The security mode setting unit 80 manages the security device 6 by setting and storing the security mode of the building 2 in the storage unit 76. The security mode setting unit 80 transmits the security mode signal indicating the security mode of the building 2 from the security device 6, that is, the security set mode, the security release mode, and the countermeasure mode set by being operated by the security officer to the communication network 4 and the communication unit 74. When the control unit 78 receives the security mode, the security mode corresponding to the signal is set and stored in the storage unit 76 as the security mode of the building 2.

Similarly, when the security determination unit 82 receives an alarm signal or an emergency signal based on the detection of the sensor of the building 2 from the security device 6, the security determination unit 82 instructs the security guard of the nearest office to deal with the building 2. An instruction signal is transmitted.
The stop instructing unit 84 transmits a “end of coping” signal to the communication device 40 in order to stop detecting whether or not there is another radio when the security judging unit 82 determines the coping end. To do.

When the security guard handles the building 2, if the building 2 is unmanned, the security device 6 performs a handling operation so that the security mode in the building 2 is a mode dedicated to the security guard. Set to. This countermeasure mode signal is transmitted from the security device 6 to the center device 3 via the communication network 4 or the like. After that, when the security guard recovers from the abnormality by appropriate countermeasures in the building 2, that is, when the security guard determines that the building 2 is maintained in a normal state, the guard guards the security device 6. The building 2 is again set to the security set mode by performing the setting operation.

When the center device 70 receives the security mode signal of the security set mode, the security mode setting unit 80 sets the security information of the building 2 from the “handling” mode to the “security set” mode again and stores it in the storage unit 76. . As a result, the handling of the building 2 is completed.

Further, the security determination unit 82 determines that the handling of the building 2 has been completed because the security mode setting unit 80 has set the “security set” mode again. The stop instructing unit 84 transmits a communication device 40 “end of coping” signal based on the determination of the end of coping by the security judging unit 82 and stops the radio detection unit 60.

The operation of the second embodiment will be described with reference to FIG.
The communication device 40 of the present embodiment is also set to be unusable as an initial setting (default setting) (S31).

When the guard starts work, the administrator lends the company-owned communication device 1. The control unit 78 of the center device 70 causes the storage unit 76 to store the name of the security guard who works on the day and the communication device 40 that is lent, input from the input unit 72. Here, for the sake of explanation, the input is made at the center device 70, but the present invention is not limited to this. For example, the name of the security guard working on the day is loaned from a business terminal such as a personal computer to each office. The communication device 40 may be input correspondingly and transmitted to the center device 70.

The work information of the guard is transmitted from the communication unit 74 of the center device 70 to the corresponding communication device 40 via the communication network 4 and the mobile communication base station 5 (S32). Thereby, the determination part 142 acquires work information via the radio | wireless part 16, and sets the communication apparatus 1 in a usable state (S33).

Subsequent operations from S34 to S41 in the operation flow of the communication apparatus 40 are the same as S5 to S12 in the operation flow of the first embodiment, and a description thereof will be omitted.

The stop instruction unit 84 communicates via the communication unit 74, the communication network 4 and the like when the security determination unit 82 determines that the handling of the target property 2 has been completed because the security determination unit 82 is set to the “security set” mode again. A “coping end” signal is transmitted to the device 40. In the communication device 40, the control unit 54 receives the “coping end” signal via the antenna 17 and the wireless unit 18 (S42). The determination unit 142 stores the information in the storage unit 18 and transmits a “stop mode” signal corresponding to the “coping end” signal to the radio wave detection unit 22 in the operation mode setting unit 143, Stop (S43).

Thereafter, when the determination unit 142 receives a work end signal of a security guard carrying the communication device 40 from the center device 70 via the wireless unit 16 (S44), the communication device 1 is set to an unusable state (S45). ). In this way, it is possible to lend the communication device 1 to other security guards by cutting the association between the security guard and the communication device 1.

  Also by the communication system of the second embodiment, the same operational effects as the communication terminal 1 of the first embodiment can be obtained. In other words, when the security guard does not bring a private mobile phone at the time of handling, the security guard can grasp that there is a third party in the vicinity of himself / herself. That is, the existence of a bandit can be detected. This allows guards to be cautious and reduce the risk of being attacked by bandits. In addition, if a security guard brings a private mobile phone at the time of handling, unauthorized use at the time of dealing with the private mobile phone can be prohibited, so information leakage from the communication device 1 or the private mobile phone 1 can be prevented. Can be prevented.

  The embodiments of the present invention have been described above by way of example, but the scope of the present invention is not limited to these embodiments, and can be changed or modified according to the purpose within the scope of the claims. is there.

  Further, the wireless device detection unit may be activated only when the communication device is located within a predetermined area. In this case, the communication device is provided with a GPS function so that the current position of the communication device can be acquired. Moreover, the inside of the predetermined area includes the inside of a business vehicle used by the guard for movement such as coping and the vicinity of the periphery. In this case, the automobile is provided with a communication device that can perform near field communication with the communication device. For example, a wireless communication device in accordance with a short-range communication method such as Bluetooth (registered trademark), RFID, ZigBee, or infrared communication device is used as the short-range communication device.

  The areas where security officers perform their duties are in the buildings at night and in business vehicles used by security officers to move to the security site, using radios such as mobile phones in addition to security officers There are many people who do not. On the other hand, outside such an area (for example, a crowd), many people often use wireless devices such as mobile phones. Therefore, there is a high possibility that radio waves that should not be detected are erroneously detected. According to this modification, if the area where the work such as building monitoring and patrol is performed is a detection area (predetermined area) for detecting the radio, erroneous detection of the radio outside the detection area is avoided. The

  DESCRIPTION OF SYMBOLS 1,40 Communication apparatus, 3,70 Center apparatus, 6 Security apparatus, 7 Monitoring center, 10,50 Wireless communication part, 12 User interface part, 14,78 Control part, 16 Wireless part, 17 Transmission / reception antenna, 18,76 Memory Unit, 20, 60 radio detection unit, 22, radio wave detection unit, 24 reception antenna, 26 reception unit, 28 operation control unit, 29 transmission stop unit, 30 radio wave detection / determination unit, 32 warning command unit, 72 input unit, 74 communication unit, 78 security mode setting unit, 82 security determination unit, 84 stop instruction unit.

Claims (6)

A communication device having a wireless communication unit that is connected to a communication line and communicates with another communication device, and a radio wave detection unit that detects the presence of another wireless device,
The wireless communication unit
An operation unit for inputting work status information of the user,
An operation mode setting unit that activates the radio wave detection unit when the work status information is specific;
The radio wave detector is
An operation control unit for performing a radio wave detection operation when receiving an activation signal from the operation mode setting unit;
And a determination unit that determines that another wireless device is present when a radio wave having a predetermined intensity or higher is detected. The communication apparatus according to claim 1, wherein the operation mode setting unit activates the radio wave detection unit when the work status information of the user is a coping task. 2. The radio wave detection unit includes a transmission stop unit that sets a state in which the radio communication unit does not perform radio transmission, and detects other radio waves when the radio transmission is not performed. The communication device described. A method of detecting another communication device in a communication device having a wireless communication unit that communicates with another communication device via a communication line and a radio wave detection unit that detects the presence of another wireless device,
Inputting the work status information of the user at the operation unit;
A step of setting the radio wave detection unit in an activated state in an operation mode setting unit when the work status information is specific;
And a step of determining that another wireless device is present when a radio wave of a predetermined intensity or more is detected by the radio wave detection unit. A wireless device detection program stored in a wireless communication device connected to a communication line and communicating with another communication device,
A process of entering the work status information of the user;
Processing to activate the radio wave detection unit when in a specific working state;
A process for determining that another radio is present when a radio wave of a predetermined intensity is detected;
Is executed by a computer included in the wireless communication apparatus. A signal from a communication device having a wireless communication unit that is connected to a communication line and communicates with another communication device, a radio wave detection unit that detects the presence of another wireless device, and a sensor that detects an abnormality A communication system comprising: a center device for receiving
The communication device
An operation control unit for starting the radio wave detection unit;
A determination unit that determines that another radio is present when a radio wave having a predetermined intensity or more is detected;
The center device is
An operation unit for inputting work status information of a user of the communication device;
A security determination unit that receives the signal of the property and determines whether or not the user needs to be dealt with;
A communication system characterized by transmitting a signal that activates the radio wave detection unit to the communication device of a user when the security determination unit determines that a countermeasure is required.

Images